The Kolka Chandan Bindi is a traditional and artistic form of forehead decoration that is worn by Bengali brides on their wedding day. It is made of chandan, which is a white paste derived from sandalwood, and embellished with kumkum, which is a red powder. It is also called Kopaler Alpona, Kolka Art, or Chandan Art. It reflects the rich and ancient culture and beauty of Bengali weddings, which are full of rituals, customs, and ceremonies. It symbolizes the purity, grace, and the auspiciousness of the marriage bond, which is considered to be a sacred and holy relationship. It represents the bride’s transition into a new phase of life, where she will share her joys and sorrows with her husband and his family.